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breast cancer

Surgeon-Initiated Gene-Expression Profile Testing in Early-Stage Breast Cancer and Time to Start of Chemotherapy

In a single-center study reported in the Journal of Oncology Practice, Losk et al found that an intervention including surgeon initiation of gene-expression profile testing with Oncotype DX significantly reduced the time to testing, receipt of testing results, and initiation of chemotherapy in...

breast cancer

First-in-Human Study of Tamoxifen Metabolite Z-Endoxifen in Endocrine-Refractory Metastatic Breast Cancer

A first-in-human phase I study of the oral tamoxifen metabolite Z-endoxifen showed high drug exposure, acceptable toxicity, and antitumor activity in endocrine-refractory estrogen receptor–positive metastatic breast cancer. The findings were reported in the Journal of Clinical Oncology by...

breast cancer

AKT Inhibitor Ipatasertib in Metastatic Triple-Negative Breast Cancer

The randomized phase II LOTUS trial has shown improved progression-free survival with the addition of the AKT inhibitor ipatasertib to paclitaxel in the first-line treatment of metastatic triple-negative breast cancer. These results were reported by Kim et al in The Lancet Oncology. The PI3K/AKT...

breast cancer

Surveillance Mammography by Life Expectancy in Older Breast Cancer Survivors

In a study reported in the Journal of Clinical Oncology, Freedman et al found that many older breast cancer survivors with a limited life expectancy still undergo annual surveillance mammography despite the absence of known benefits. Study Details The study involved analysis of National Health...

breast cancer

Partial-Breast and Reduced-Dose Radiotherapy After Breast-Conserving Surgery

The UK IMPORT LOW phase III trial has shown noninferiority in local relapse for partial-breast and reduced-dose vs standard whole-breast radiotherapy after breast-conserving surgery in early breast cancer. These study results were reported by Coles et al in The Lancet. Study Details In the...

breast cancer

Genomic Characteristics and Immune Infiltration in Triple-Negative Breast Cancer

In a study reported in JAMA Oncology, Karn et al found that triple-negative breast cancers with high immune gene expression levels were characterized by lower clonal heterogeneity, reduced copy number alterations, and lower somatic mutation and neoantigen loads. Study Details In the study, DNA...

breast cancer

Effect of Radiotherapy After Breast-Conserving Surgery Among Breast Cancer Subtypes

In an analysis of the Swedish Breast Cancer Group 91 Radiotherapy trial reported in the Journal of Clinical Oncology, Sjöström et al found that adjuvant radiotherapy vs no radiotherapy had an increased benefit in triple-negative disease and little effect on HER2-positive disease in a...

breast cancer

Predisposition to Breast Cancer Due to Mutations Other Than BRCA1 and BRCA2 in Ashkenazi Jewish Women

A cohort study in Ashkenazi Jewish women with breast cancer identified mutations other than BRCA1 and BRCA2 founder alleles that were associated with cancer risk. These study results were reported by Walsh et al in JAMA Oncology. Among Ashkenazi Jewish women, three mutations in BRCA1 and BRCA2...

breast cancer

Ovarian Function Recovery During Anastrozole Therapy in Postmenopausal Patients With Breast Cancer

In the phase III DATA trial reported in the Journal of the National Cancer Institute by van Hellemond et al, 12% of women with breast cancer who had chemotherapy-induced ovarian function failure experienced ovarian function recovery during 30 months of aromatase inhibitor therapy with anastrozole....

breast cancer

Trastuzumab-Based Regimens in Older Women With Early Breast Cancer

A comparative analysis of outcomes with two different trastuzumab (Herceptin)-based adjuvant regimens in older women with early HER2-positive breast cancer found little difference in safety and efficacy between treatments. The study was reported by Reeder-Hayes et al in the Journal of Clinical...

breast cancer

10-Year Follow-up on Adjuvant Tamoxifen and Exemestane in Postmenopausal Early Breast Cancer

The 10-year follow-up of the phase III TEAM trial has shown that exemestane alone and sequential tamoxifen/exemestane provide similar outcomes as adjuvant endocrine therapy in postmenopausal women with hormone receptor–positive early breast cancer. The findings were reported in The Lancet...

breast cancer

Effect of BRCA1/2 Status on Response to Neoadjuvant Carboplatin in Triple-Negative Breast Cancer

An analysis of the GeparSixto trial in triple-negative breast cancer showed that adding carboplatin to neoadjuvant therapy improved pathologic complete response rate in patients without BRCA1/2 mutation and that response rates were higher overall in those with mutations, without additive effects...

breast cancer

Association of Bisphosphonate Use and Breast Cancer Risk in Postmenopausal Women

A study in postmenopausal women in the French E3N prospective cohort indicated bisphosphonate use was not associated with a reduced risk of breast cancer. These findings were reported by Fournier et al in the Journal of Clinical Oncology. Study Details The study included 64,438 postmenopausal...

breast cancer

Breast Cancer Survivor Preferences for Providers of Aspects of Primary Care After Cancer Treatment

In a study reported in the Journal of Clinical Oncology, Wallner et al found that minority women vs white women and women with a lower vs higher attained education level were more likely to prefer oncology-directed care vs primary care provider–directed care for aspects of care normally...

breast cancer

Genetic Study Identifies Susceptibility Loci Modifying Risk for Breast Cancer After Radiation Therapy for Childhood Cancer

As reported in the Journal of the National Cancer Institute, Morton et al have identified gene loci associated with radiation-related risk of breast cancer in survivors of childhood cancer. Study Details The study was a genome-wide association study of breast cancer in female survivors of...

breast cancer

Neoadjuvant Ado-trastuzumab Emtansine vs Trastuzumab in Early HER2-Positive, HR-Positive Breast Cancer

A West German Study Group phase II trial, reported by Harbeck et al in the Journal of Clinical Oncology, has shown a higher pathologic complete response rate with neoadjuvant ado-trastuzumab emtansine (formerly known as T-DM1; Kadcyla) with or without endocrine therapy vs trastuzumab (Herceptin)...

breast cancer

MammaPrint Scoring and Indolent Node-Negative Breast Cancer

In an analysis reported in JAMA Oncology, Esserman et al found that an ultralow-risk designation using the 70-gene MammaPrint assay is capable of identifying patients with node-negative disease who have a very low long-term risk of death from breast cancer after surgery without systemic therapy....

breast cancer

Anthracycline-Free Adjuvant Treatment in Early TOP2A-Normal Breast Cancer

The Danish phase III DBCG 07-READ trial has shown no difference in disease-free survival with adjuvant docetaxel/cyclophosphamide vs epirubicin, cyclophosphamide, and docetaxel in patients with early TOP2A-normal breast cancer. These trial results were reported in the Journal of Clinical Oncology...

breast cancer

Effect of Patient-Reported Symptoms on Adherence to Preventive Treatment for Breast Cancer

In an analysis of the UK cohort of the International Breast Cancer Intervention Study (IBIS-I) reported in the Journal of Clinical Oncology, Smith et al found similar effects of predefined symptoms on nonadherence in both tamoxifen and placebo recipients. IBIS-I randomized women at high risk of...

breast cancer

Interventionist-Guided Weight Loss Program for African American Breast Cancer Survivors

As reported by Stolley et al in the Journal of Clinical Oncology, a community-based interventionist-guided weight loss program for African American breast cancer survivors (Moving Forward) proved successful in achieving weight loss goals compared with a self-guided weight loss program. African...

breast cancer

Study Estimates Risks of Breast and Ovarian Cancers in BRCA1/2-Mutation Carriers

In a prospective cohort study reported in JAMA, Kuchenbaecker et al derived estimates of cumulative risks for breast, ovarian, and contralateral breast cancers among women carrying BRCA1 or BRCA2 mutations. Study Details The study involved data from 6,036 BRCA1 and 3,820 BRCA2 carriers recruited...

breast cancer

Accelerated vs Standard Epirubicin and Capecitabine vs CMF in Adjuvant Therapy for Breast Cancer

The phase III UK TACT2 trial has shown no efficacy benefit of accelerated vs standard epirubicin and a potential quality-of-life benefit of capecitabine vs CMF (cyclophosphamide, methotrexate, fluorouracil) as adjuvant therapy for breast cancer. The findings were reported in The Lancet Oncology by...

breast cancer

Equivalence Trial of Neoadjuvant Trastuzumab Biosimilar CT-P6 vs Trastuzumab in HER2-Positive Breast Cancer

A phase III equivalence trial has shown comparable pathologic complete response rates with the proposed trastuzumab biosimilar CT-P6 vs reference trastuzumab (Herceptin) in neoadjuvant treatment of HER2-positive early breast cancer. The study was reported by Stebbing et al in The Lancet Oncology....

breast cancer

Trends in Surgery After Initial Lumpectomy for Breast Cancer

In a study reported in JAMA Oncology, Morrow et al found that the rates of surgery after initial lumpectomy for stage I or II breast cancer have decreased with dissemination of guidelines advocating a minimal negative surgical margin. A 2014 consensus statement of the Society of Surgical Oncology...

breast cancer

Combination of Buparlisib and Fulvestrant in Postmenopausal Women With Advanced Breast Cancer

In the phase III BELLE-2 trial, the addition of the PI3K inhibitor buparlisib to fulvestrant (Faslodex) improved progression-free survival in postmenopausal hormone receptor–positive, HER2-negative advanced breast cancer—but at the cost of excessive toxicity. Results were reported in...

breast cancer

Adding Abemaciclib to Fulvestrant in Hormone Receptor–Positive, HER2-Negative Breast Cancer

In the phase III MONARCH 2 trial reported at the recent ASCO Annual Meeting and in the Journal of Clinical Oncology by Sledge et al, the addition of the selective cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitor abemaciclib to fulvestrant (Faslodex) improved progression-free survival in hormone...

breast cancer

OlympiAD Trial: Olaparib in Metastatic Breast Cancer With Germline BRCA Mutation

As reported in the Plenary Session at the 2017 ASCO Annual Meeting and in The New England Journal of Medicine by Robson et al, the phase III OlympiAD trial showed that the poly (ADP-ribose) polymerase (PARP) inhibitor olaparib (Lynparza) prolonged progression-free survival vs standard therapy in...

breast cancer

Breast Cancer Risk and Histologic Findings in Serial Benign Biopsies

As reported by Visscher et al in the Journal of the National Cancer Institute, changes in the histologic category between initial and subsequent biopsies had a significant effect on the risk for breast cancer among women with serial benign biopsy findings. Study Details The study involved 1,414...

breast cancer

Final Overall Survival Results of TH3RESA Trial in Breast Cancer

The final overall survival results of the phase III TH3RESA trial indicate a 32% reduction in risk of death with ado-trastuzumab emtansine (Kadcyla) vs treatment of physician’s choice in patients with previously treated HER2-positive metastatic breast cancer. The findings were reported in The ...

breast cancer

Tai Chi Chih vs Cognitive Behavioral Therapy for Insomnia in Breast Cancer Survivors

In a study reported in the Journal of Clinical Oncology by Irwin et al, Tai Chi Chih, a form of movement meditation, was noninferior to insomnia-specific cognitive behavioral therapy in improving insomnia in breast cancer survivors. Study Details In the study, 90 patients with insomnia from the...

breast cancer

Effect of Fixed Second Appointments on Breast Cancer Screening Attendance

In a UK study reported in The Lancet Oncology, Allgood et al found that provision of a second timed appointment for breast cancer screening improved screening rates among women who did not attend a first offered appointment. Study Details In the study, women who were invited for breast screening...

breast cancer

Final Overall Survival Results of EMILIA Trial in Breast Cancer

As reported in The Lancet Oncology by Diéras et al, the final overall survival results of the phase III EMILIA trial show improved outcome with ado-trastuzumab emtansine (Kadcyla) vs capecitabine plus lapatinib (Tykerb) in previously treated HER2-positive advanced breast cancer. Approval of...

breast cancer

Long-Term Follow-up of Intergroup Exemestane Study

A final efficacy analysis of the Intergroup Exemestane Study, reported in the Journal of Clinical Oncology by Morden et al, shows continued benefit of switching to adjuvant exemestane after 2 to 3 years of tamoxifen in patients with early breast cancer. Study Details In the trial, patients who...

breast cancer

Hypofractionated Postmastectomy Radiation in Breast Cancer

In a phase II trial, Khan et al found that hypofractionated postmastectomy radiotherapy, completed in 15 treatment days, was safe and effective in women with stage II to IIIa breast cancer. The study was reported in the Journal of Clinical Oncology. Study Details In the study, 67 women from 2...

breast cancer

Changes in HER2 Breast Cancer Testing According to 2007 and 2013 ASCO/CAP Guidelines

Hanna et al have reported that the 2013 update to the 2007 ASCO/College of American Pathologists (CAP) recommendations for HER2 testing in breast cancer did not result in changes in the overall HER2-positivity rate but was associated with a higher rate of equivocal results. Their findings were...

breast cancer

Adding Pertuzumab to Trastuzumab/Capecitabine in Pretreated HER2-Positive Metastatic Breast Cancer

The phase III PHEREXA trial has shown no significant improvement in progression-free survival with the addition of pertuzumab (Perjeta) to trastuzumab (Herceptin)/capecitabine in patients with HER2-positive metastatic breast cancer with disease progression during or after trastuzumab-based...

breast cancer

Final, 10-Year Follow-up of Phase III Trial on Adding Gemcitabine to Adjuvant Therapy in Breast Cancer

The final, 10-year follow-up of the ‘all comers’ tAnGo trial, reported by Earl et al in The Lancet Oncology, continued to show no overall benefit of adding gemcitabine to adjuvant therapy in women with early-stage breast cancer. The trial, initiated in 2001, included patients...

breast cancer

Germline Genetic Testing and Treatment Decisions in Early-Stage Breast Cancer

As reported in the Journal of Clinical Oncology by Kurian et al, surveys in a population-based sample of patients recently diagnosed with breast cancer indicate that many undergo genetic risk testing without seeing a genetics counselor and that many with BRCA1/2 variants of uncertain significance...

breast cancer

Benefit of Survivorship Care Plans Among Low-Income, Predominantly Latina Breast Cancer Survivors

A randomized trial, reported by Maly et al in the Journal of Clinical Oncology, has shown that having an individualized survivorship care plan in place was associated with increased physician implementation of recommended breast cancer survivorship care among low-income, predominantly Latina breast ...

breast cancer

Efficacy Analysis of ABC Breast Cancer Trials of Adjuvant Taxane With/Without Anthracycline in HER2-Negative Disease

As reported by Blum et al in the Journal of Clinical Oncology, the efficacy analysis of the combined adjuvant Anthracyclines in Early Breast Cancer (ABC) Trials showed better invasive disease-free survival with taxane plus doxorubicin/cyclophosphamide (TaxAC) regimens vs six cycles of...

breast cancer

Effect of Radiotherapy Boost for Ductal Carcinoma in Situ After Whole-Breast Radiotherapy

In an analysis reported in JAMA Oncology, Moran et al found that a radiotherapy boost for ductal carcinoma in situ with local control after whole-breast radiotherapy was associated with a reduction in the risk for ipsilateral breast tumor recurrence. Study Details The analysis pooled...

breast cancer

Satisfaction With Surgical Decision-Making in Women Considering Contralateral Prophylactic Mastectomy for Breast Cancer

In a study reported in JAMA Surgery, Katz et al found that most patients considering contralateral prophylactic mastectomy for stage 0 to II breast cancer were satisfied with surgical decision-making. Most surgeons discussed contralateral prophylactic mastectomy and most did not recommend against...

breast cancer

Patient-Reported Outcomes With Immediate Implant-Based or Autologous Breast Reconstruction

As reported in the Journal of Clinical Oncology by Pusic et al, patient-reported outcomes in the Mastectomy Reconstruction Outcomes Consortium Study indicate that autologous tissue breast reconstruction is associated with greater breast satisfaction and greater sexual and psychosocial well-being...

breast cancer

Anti–Trop-2 Antibody Drug Conjugate in Heavily Pretreated Metastatic Triple-Negative Breast Cancer

As reported in the Journal of Clinical Oncology by Bardia et al, the anti–Trop-2 antibody drug conjugate sacituzumab govitecan has been found to produce durable responses in patients with heavily pretreated metastatic triple-negative breast cancer. Trop-2, a glycoprotein initially identified ...

breast cancer

Effect of Polypharmacy on Adherence to Adjuvant Endocrine Therapy for Breast Cancer

In a retrospective cohort study reported in the Journal of Oncology Practice, Calip et al found that polypharmacy overall was associated with increased adherence to adjuvant endocrine therapy for breast cancer. However, frequent use of some medication classes was associated with decreased...

breast cancer

Impact of 70-Gene Signature on Adjuvant Chemotherapy Decisions in Breast Cancer

In a Dutch observational study reported in the Journal of Clinical Oncology, Kuijer et al found that use of the MammaPrint 70-gene signature (70-GS) test changed physician-intended recommendations to administer adjuvant chemotherapy in half of patients with early-stage estrogen...

breast cancer

Suboptimal BMD Evaluation in Postmenopausal Women With Early-Stage Breast Cancer Receiving Aromatase Inhibitors

In a study reported in the Journal of Oncology Practice, Stratton et al found that most postmenopausal Medicare patients with early-stage breast cancer receiving aromatase inhibitor therapy do not receive recommended bone mineral density (BMD) measurements. Most expert panels recommend BMD...

breast cancer

Association of Metformin Use for Diabetes With Outcomes in HER2-Positive Breast Cancer

In an analysis from the phase III ALTTO trial reported in the Journal of Clinical Oncology, Sonnenblick et al found that among patients receiving adjuvant therapy for HER2-positive breast cancer, those with diabetes who received metformin had better outcomes than those who did not receive...

breast cancer

Cancer Care Ontario and ASCO Clinical Practice Guideline: Use of Adjuvant Bisphosphonates and Other Bone-Modifying Agents in Breast Cancer

As reported in the Journal of Clinical Oncology by Dhesy-Thind, ofJuravinski Cancer Centre, Hamilton Health Sciences, and colleagues, Cancer Care Ontario and ASCO have issued a clinical practice guideline on the use of adjuvant bisphosphonates and other bone-modifying agents in breast cancer. The...

breast cancer

Dutch Study Examines Effect of Internet-Based Cognitive Behavioral Therapy on Sexual Functioning in Breast Cancer Survivors

In a Dutch study reported in the Journal of Clinical Oncology, Hummel et al found that use of an Internet-based cognitive behavioral therapy intervention improved sexual functioning among breast cancer survivors. Study Details In the study, 169 women with a diagnosis of sexual dysfunction from 10 ...

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